Two-component efficient and light external wall insulation material and preparation method thereof

Abstract

The invention belongs to the field of insulation building materials and discloses a two-component efficient and light external wall insulation material and a preparation method thereof. The insulation material comprises a component 1 and a component 2, wherein the component 1 is prepared from, by mass, 30-45 parts of cement, 10-20 parts of gypsum, 0.01-0.2 part of wood fiber and 0.05-015 part of retarder; the component 2 is prepared from, by mass, 0.3-1 part of coalescing agent, 0.3-0.6 part of cellulose, 0-1.5 parts of redispersible latex powder, 10-20 parts of hydrophobic aluminum-magnesium silicate, 5-10 parts of hydrophobic SiO2 aerogel, 10-20 parts of rock wool, 3-8 parts of bentonite and 3-10 parts of synthetic resin emulsion. The insulation material is low in heat conductivity coefficient, good in insulation effect, high in fire resistance rating and convenient to construct.

Description

technical field [0001] The invention belongs to the field of thermal insulation building materials, and in particular relates to a two-component high-efficiency lightweight exterior wall thermal insulation material and a preparation method thereof. Background technique [0002] In the field of construction, building thermal insulation is an important measure to achieve the strategic goal of sustainable development in my country. Considering factors such as area occupancy and thermal bridges, the most widely used thermal insulation system for buildings is the interior wall and exterior thermal insulation system. The commonly used thermal insulation materials are extruded polystyrene board (XPS board), expanded polystyrene board, and expanded polystyrene board. Benzene board (EPS board), rigid foam polyurethane (PU) board and other organic polymer boards. Organic polymer panels have the advantages of low thermal conductivity and water resistance, but there are also many probl...

AI Technical Summary

Problems solved by technology

Organic polymer panels have the advantages of low thermal conductivity and water resistance, but there are also many problems such as poor safety and fire resistance, poor anti-aging performance, and inconvenient construction; while commonly used inorganic insulation materials have higher fire ratings. , good safety. However, there are also disadvantages such as poor thermal insulation performance and high thermal conductivity. Therefore, the development of inorganic thermal insulation materials with high mechanical strength, good stability and low thermal conductivity is the need of social development.

[0003] At present, some researchers have also developed some new inorganic thermal insulation materials in a targeted manner, but their thermal conductivity is still relatively large, and the thermal insulation effect is poor. For example: Chinese invention patent CN103708794A discloses a waterproof thermal insulation mortar used on the outer wall of a building , by weight, the insulation mortar is made from the following raw materials: 80-90 parts of ordinary Portland cement, 3-5 parts of slaked lime, 20-30 parts of polyphenylene particles, 2-4 parts of 9mm long polypropylene fiber, yttrium oxide 1-2 parts, 5-10 parts of hollow microspheres, 1-2 parts of urea, 0.01-0.02 parts of rapeseed cake powder, 4-6 parts of styrene-butadiene latex, 1-2 parts of clove oil, 3-4 parts of vitamin C, MNC -C antifreeze 1.3-2.4 parts, composite filler 4-6 parts

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